Oakum packing



A. C. FISCHER OAKUM PACKING July 12, 1932.

Filed April 16, 1928 Fatontcd duly 12, 1932 I issues? ALBERT C. FISCHER,@F CHICAGO, ILLINOIS, ASSIGNOR TO THE PHILI? CAREY MANU- FAGTUBINGCOMPANY, A CORPORAZEKON OF OHIO @AKUM L ACKING Application filed Aprilis, 1988. serial No. 270,515.

This invention is a continuation in part of my copending application,Serial No. 56,084, filed Sept. 12, 1925, and relates to improvements inoakum packings and particularly to pachngs which are adaptable for usein connection with the laying of sewer pipe, calking sidewalk lights,ships and the like.

It has heretofor been the practice to utilize materials for packingpurposes which are comparatively expensive, and one of the primaryobjects of my invention is to produce a packing material of economicalconstruction and adapted to be used with equal, if not superior,efiectiveness than packing materials which have to my knowledgeheretofor been employed.

1 have found that there is available considerable roofing felt, known asseconds, and scrap material, and by incorporating therewith a slightpercentage of fibrous matter and bituminous material I have been able toform a mixture which has binding strength and which presents a veryefiective packing material. This material may be produced for example bymim'ng roofing scrap with a soft bituminous material of low meltingpoint and then adding a certain percentage of fibrous material such ascocoanut fibre or any other suitable long vegetable fibre which will addto the binding strength of the material. After this has been thoroughlyincororated within the mass, said mass may be ormed by suitable meansinto strands and a plurality of these strands may be twisted orintertwined to present a rope packing o desired size. Obviously thenumber of strands intertwined to roduce the rope packing material willbe etermined by the size of material which is needed.

A more comprehensive understanding of my invention and the objectsthereof will be obtained from the following detailed description whenconsidered in connection with the accompanying drawing wherein:

Figure 1 is a perspective view of my improved packing as made in asingle coiled strand or strip;

Figure 2 is an enlarged view in longitudi- :nal section of a shortlength of one of the strands or strips Figure 3 is an enlarged sectionalview taken transversely of one of the strands on the line 3-3 of Figure2;

Figure 4: is a side elevational view of a fragmentary portion of a ropepacking produced by intertwining five of the single strands;

Figure 5 is a transverse sectional view taken on the line 55 of Figure4;

Figure 6 is a fragmentary side elevational view of a rope produced byintertwining three of the single strands; and

Figure 7 is a transverse sectional view:

ture designated by the numeral 2, which is comprised of five individualstrands, and in Figures 6 and 7 I have shown a-similar rope constructiondesignated by the numeral 2, said rope construction comprised of threeintertwined strands.

In Figure 2 l. have disclosed a section taken longitudinally of one ofthe strands 1 for the purpose of disclosing the internal f structurethereof. It will be observed that this strand is comprised of finelydivided material from roofing felt, seconds or scrap ndicated by thenumeral 3 and relatively long fibres 4, such as cocoanut fibres, sisal,long grasses or other fibrous material of considerable length. Thisfinely divided material 3 and the relatively long fibres 4; areincorporated within suitable bituminous material of low melting point,which I have indicated by the numeral 5, Figure 2. In producing thestrand material 1 just described, I mix roofing scrap or other suitablefinely divided material in a heavy mixture and incorporate therewithsoft bituminous material of low melting point, sufiicient to make thematerial adequately waterproof. I preincludes a plastic mixture offinelydivided.

fer to add thereto five (5%) percent of cocoanut fibre or other suitablelong vegetable fibre which will add to the bindin strength of thematerial. This is thoug ly mcorported with a mixture and then rolledinto strips or strands such as the strands 1. I have found that scrapsof roofing material are sufliciently interwoven and shreddedwhenmasticated in a mixer so-that it flows smoothl and has substantialstrength, espe-' cially w on materials such as cocoanut fibre, sisal,long grasses or other fibrous mater1al with. In order to preserve thestrand material, said material may be treated with a flux oil, an oil oflow melting point asphalt so as to maintain the material pliable andmalleable at all times. H

From the foregoing it will be understood that the individual strands maybe formed into rope structures by merely intertwining or twistingtogether a plurality of strands'as clearly shown in Figures 4 and 6. Theindividual strands or intertwined structures may be formed intoconvenient coils similar to the manner in which other packing materialsare formed and one of the outstanding characteristics of my improvedpacking material resides in its comparative cheapness and itsadaptability to a wide range of use as compared with other materials. Byproducing this bituminous strand material I have greatly facilitated theuse thereof for acking purposes in that the material may be formed mtorope structures of varied cross sectional areas in accordance with theparticular work with which the packing mafibres and plastic bituminousmaterial, and having relatively lon fibrous material incorporatedtherein w ich lend the desired degree of strength to the strandmaterial.

2. Packing material of the class described, comprising maceratedroofingscrap having relatively long fibrous material mixed therewith andformed into plastic rope-like strands. i

3. Packing material of the class described comprising macerated roofingscrap and relatively long fibrous material mixed thereof considerablelength is incorporated therewith and formed into a plurality ofintertwined plastic strands. v

4. Packing material of the class described comprising macerated roofingscrap havin low meltmg point bituminous, materia mixed therewith, saidmixture having relatively long fibrous material incorporated therewith,said mixture being formed into rope-like strands adapted to beconveniently used for packing purposes. 7

5. Packing material of the class described 'I terial is to be used. Thusfor example in employing my improved strand packing material for thepacking of sewer pipes and the like one size of said material would be.used, while the use of material for calking puroses on ships mightrequire another size.

t will thus e apparent that my invention provides a very convenient. andpractical packing material in strand or rope form, which is adaptablefor a wide range of sizes and which provides a very elfective pack-Having thus described my invention, what i I claim as new and desire tosecure by Letters Patent is:

1. Paeking material of the class described, compnslng a plasticrope-like strand which

